All its going to take for the next paradigm shift will be for voice assistants and batteries to get better, and for google glass-like devices get so good that they match the feature set of smartphones and standalone VR systems and also become so small that they fit in a regular looking pair of sunglasses.

I'm not sure how long it will take, but it honestly seems inevitable.

Maybe it won't be glasses, but it will almost certainly be something we wear instead of a thing that we carry around forever.